Most boards using the pcf2127 chip (in my bubble) don't make use of the
watchdog functionality and the respective output is not connected. The
effect on such a board is that there is a watchdog device provided that
doesn't work.
So only register the watchdog if the device tree has a "has-watchdog"
property.
Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
---
drivers/rtc/rtc-pcf2127.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
index 5b1f1949b5e5..8bd89d641578 100644
--- a/drivers/rtc/rtc-pcf2127.c
+++ b/drivers/rtc/rtc-pcf2127.c
@@ -340,7 +340,8 @@ static int pcf2127_watchdog_init(struct device *dev, struct
pcf2127 *pcf2127)
u32 wdd_timeout;
int ret;
- if (!IS_ENABLED(CONFIG_WATCHDOG))
+ if (!IS_ENABLED(CONFIG_WATCHDOG) ||
+ !device_property_read_bool(dev, "has-watchdog"))
return 0;
pcf2127->wdd.parent = dev;
--
2.28.0
